Manifestation of α-clustering in ${}^{10}$Be via α-knockout reaction

Abstract

Background: Proton-induced α-knockout reactions empower direct experimental manifestations of α-clustering in nuclei. This is obtained by relating the theoretical descriptions of clustering states with experimental reaction observables. It is desired to introduce microscopic structure models into the theoretical frameworks for α-knockout reactions. Purpose: Our goal is to probe the α-clustering in ${}^{10}$Be nucleus by proton-induced α-knockout reaction observables. Method: We adopt an extended version of the Tohsaki-Horiuchi-Schuck-Röpke (THSR) wave function of ${}^{10}$Be and integrate it with the distorted wave impulse approximation (DWIA) framework for the calculation of (p,pα) knockout reactions. Results: We make the first calculation for the ${}^{10}$Be(p,pα)${}^6$He reaction at 250 MeV implementing a microscopic α-cluster wave function and predict the triple differential cross sections (TDX). Furthermore, by constructing artificial states of the target nucleus ${}^{10}$Be with compact or dilute spatial distributions, the TDX is found to be highly sensitive to the extent of clustering in the target nuclei. Conclusions: These results provide reliable manifestation of the α-clustering in ${}^{10}$Be.

9 pages, 5 figures

References in corpus (6)

• Nuclear Charge Radii of Be-7,9,10 and the one-neutron halo nucleus Be-11
• Microscopic optical potentials for ${}^4$He scattering
• Breathing-like excited state of the Hoyle state in ${}^{12}\mathrm{C}$
• Investigation of ${}^9$Be from nonlocalized clustering concept
• Approximation of reduced width amplitude and application to cluster decay width
• Monopole excitation of the Hoyle state and linear-chain state in 12C

Cited by in corpus (13)

• Validation of the ${}^{10}\mathrm{Be}$ Ground-State Molecular Structure Using ${}^{10}\mathrm{Be}(p,p\alpha {)}^6\mathrm{He}$ Triple Differential Reaction Cross-Section Measurements
• Quantitative description of the ${}^{20}$Ne($p$,$p\alpha$)${}^{16}$O cross section as a means of probing the surface $\alpha$ amplitude
• Direct probing of the cluster structure in ${}^{12}$Be via $\alpha$-knockout reaction
• Investigation of spatial manifestation of $\alpha$ clusters in ${}^{16}$O via $\alpha$-transfer reactions
• $\alpha$ knockout reaction as a new probe for $\alpha$ formation in $\alpha$-decay nuclei
• Resonant and Scattering States in the $\alpha +\alpha$ System from the Non-Localized Cluster Model
• Determination of the cluster-decay branching ratio from a near-threshold molecular state in ${}^{10}$Be
• The study of the alpha formation probability in 10Be and 12Be within the microscopic cluster model
• Evolution of clustering structure through the momentum distributions in ${}^{8-10}$Be isotopes
• Proton induced deuteron knockout reaction as a probe of an isoscalar proton-neutron pair in nuclei
• Significance of the refraction effect on the $p$-$d$ elementary process in the ($p$,$pd$) reaction
• Manifestation of the divergence between antisymmetrized-molecular-dynamics and container pictures of ${}^9$Be via ${}^9$Be($p,pn$)${}^8$Be knockout reaction
• Effective polarization in proton-induced $\alpha$ knockout reactions